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< Page ,Total 13 >
Near-infrared light-regulated cancer theranostic nanoplatform based on aggregation-induced emission luminogen encapsulated upconversion nanoparticles SCIE
期刊论文 | 2019 , 9 (1) , 246-264 | THERANOSTICS
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Abstract :

Photodynamic therapy (PDT) has been widely applied in the clinic for the treatment of various types of cancer due to its precise controllability, minimally invasive approach and high spatiotemporal accuracy as compared with conventional chemotherapy. However, the porphyrin-based photosensitizers (PSs) used in clinics generally suffer from aggregation-caused reductions in the generation of reactive oxygen species (ROS) and limited tissue penetration because of visible light activation, which greatly hampers their applications for the treatment of deep-seated tumors. Methods: We present a facile strategy for constructing a NIR-regulated cancer theranostic nanoplatform by encapsulating upconversion nanoparticles (UCNPs) and a luminogen (2-(2,6-bis((E)-4-(phenyl(40-(1,2,2-triphenylvinyl)-[1,10-biphenyl]-4-yl)amino)styryl)-4H-pyran-4-ylidene)malononitrile, TTD) with aggregation-induced emission (AIEgen) characteristics using an amphiphilic polymer, and further conjugating cyclic arginine-glycine-aspartic acid (cRGD) peptide to yield UCNP@TTD-cRGD NPs. We then evaluated the bioimaging and anti-tumor capability of the UCNP@TTD-cRGD NPs under NIR light illumination in an in vitro three-dimensional (3D) cancer spheroid and in a murine tumor model, respectively. Results: With a close match between the UCNP emission and absorption of the AIEgen, the synthesized NPs could efficiently generate ROS, even under excitation through thick tissues. The NIR-regulated UCNP@TTD-cRGD NPs that were developed could selectively light up the targeted cancer cells and significantly inhibit tumor growth during the NIR-regulated PDT treatment as compared with the cells under white light excitation. Conclusion: In summary, the synthesized UCNP@TTD-cRGD NPs showed great potential in NIR light-regulated photodynamic therapy of deep-seated tumors. Our study will inspire further exploration of novel theranostic nanoplatforms that combine UCNPs and various AIEgen PSs for the advancement of deep-seated tumor treatments with potential clinical translations.

Keyword :

aggregation-induced emission (AIE) near infrared light active targeting photodynamic therapy tumor imaging

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GB/T 7714 Jin, Guorui , He, Rongyan , Liu, Qian et al. Near-infrared light-regulated cancer theranostic nanoplatform based on aggregation-induced emission luminogen encapsulated upconversion nanoparticles [J]. | THERANOSTICS , 2019 , 9 (1) : 246-264 .
MLA Jin, Guorui et al. "Near-infrared light-regulated cancer theranostic nanoplatform based on aggregation-induced emission luminogen encapsulated upconversion nanoparticles" . | THERANOSTICS 9 . 1 (2019) : 246-264 .
APA Jin, Guorui , He, Rongyan , Liu, Qian , Lin, Min , Dong, Yuqing , Li, Kai et al. Near-infrared light-regulated cancer theranostic nanoplatform based on aggregation-induced emission luminogen encapsulated upconversion nanoparticles . | THERANOSTICS , 2019 , 9 (1) , 246-264 .
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Recent advances in siRNA delivery for cancer therapy using smart nanocarriers SCIE PubMed Scopus
期刊论文 | 2018 , 23 (4) , 900-911 | DRUG DISCOVERY TODAY
WoS CC Cited Count: 6 SCOPUS Cited Count: 8
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Abstract :

Small interfering RNAs (siRNAs) can selectively target and downregulate disease-causing genes, holding great promise in treating human diseases, especially malignant cancers. However, how to efficiently deliver siRNAs into target cell cytosol is a problem that has hindered their clinical application. Here, we review the recent strategies for siRNA delivery on the basis of smart nanocarriers by using stimuli responsive materials. We highlight the rationales of how to design smart nanocarriers responsive to physiological and external stimuli to improve the delivery efficiency, targeting precision and gene silencing efficacy. Finally, we provide an outlook on the fundamental limitation for clinical translation of siRNA-based nanomedicine that should be overcome by the combination of chemistry, biology, material and medical science.

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GB/T 7714 Zhang, Penghui , An, Keli , Duan, Xiaoman et al. Recent advances in siRNA delivery for cancer therapy using smart nanocarriers [J]. | DRUG DISCOVERY TODAY , 2018 , 23 (4) : 900-911 .
MLA Zhang, Penghui et al. "Recent advances in siRNA delivery for cancer therapy using smart nanocarriers" . | DRUG DISCOVERY TODAY 23 . 4 (2018) : 900-911 .
APA Zhang, Penghui , An, Keli , Duan, Xiaoman , Xu, Hao , Li, Fei , Xu, Feng . Recent advances in siRNA delivery for cancer therapy using smart nanocarriers . | DRUG DISCOVERY TODAY , 2018 , 23 (4) , 900-911 .
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Theranostics of Triple-Negative Breast Cancer Based on Conjugated Polymer Nanoparticles EI SCIE Scopus
期刊论文 | 2018 , 10 (13) , 10634-10646 | ACS APPLIED MATERIALS & INTERFACES
WoS CC Cited Count: 4 SCOPUS Cited Count: 5
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Abstract :

Triple-negative breast cancer (TNBC) does not respond to many targeted drugs due to the lack of three receptors (i.e., estrogen receptor, progesterone receptor, and human epidermal growth factor receptor-2), which makes it difficult for TNBC detection and treatment. As compared to traditional breast cancer treatments such as surgery and chemotherapy, photodynamic therapy (PDT) has emerged as a promising approach for treating TNBC due to its precise controllability, high spatiotemporal accuracy, and minimal invasive nature. However, traditional photosensitizers used in PDT are associated with limitations of aggregation-caused quenching (ACQ), and the ACQ induced a significant decrease in reactive oxygen species (ROS) generation. To address these, we synthesized a cyclic arginine-glycine-aspartic acid (cRGD) peptide-decorated conjugated polymer (CP) nanoparticles with poly[2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylenevinylene] (MEH-PPV) as the photosensitizer for the theranostics of TNBC. The synthesized CP nanoparticles show bright fluorescence with high stability and could effectively produce ROS under light irradiation. Cell viability studies showed that the CP nanoparticles have negligible dark cytotoxicity and could efficiently kill the alpha(v)beta(3) integrin-overexpressed MDA-MB-231 cells (one subtype of TNBC cells) in a selective way. With the use of cRGD-modified MEH-PPV nanoparticles as the theranostic agent, it permits targeted imaging and PDT of TNBC both in the in vitro 3D tumor model and in living mice. The application of CP nanoparticles in the successful theranostics of TNBC could pave the way for future development of CP-based photosensitizers for clinical applications.

Keyword :

theranostics tumor imaging triple-negative breast cancer therapy photodynamic therapy conjugated polymer

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GB/T 7714 Jin, Guorui , He, Rongyan , Liu, Qian et al. Theranostics of Triple-Negative Breast Cancer Based on Conjugated Polymer Nanoparticles [J]. | ACS APPLIED MATERIALS & INTERFACES , 2018 , 10 (13) : 10634-10646 .
MLA Jin, Guorui et al. "Theranostics of Triple-Negative Breast Cancer Based on Conjugated Polymer Nanoparticles" . | ACS APPLIED MATERIALS & INTERFACES 10 . 13 (2018) : 10634-10646 .
APA Jin, Guorui , He, Rongyan , Liu, Qian , Dong, Yuqing , Lin, Min , Li, Wenfang et al. Theranostics of Triple-Negative Breast Cancer Based on Conjugated Polymer Nanoparticles . | ACS APPLIED MATERIALS & INTERFACES , 2018 , 10 (13) , 10634-10646 .
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The elastic fields of a compressible liquid inclusion EI Scopus CSSCI-E SCIE
期刊论文 | 2018 , 22 , 122-130 | Extreme Mechanics Letters
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Abstract :

Elastic composites containing liquid inclusions exist widely in rocks, food, tissues and hydrogels. We investigate a single ellipsoidal compressible liquid inclusion embedded in an infinite elastic matrix, such as an isolated cell embedded in an extracellular matrix or an oil or gas pocket embedded within shale. We first derive the displacement and stress fields in the matrix under far field loading. For the special case of a spherical inclusion, we arrive at simple, explicit expressions for these fields. We next focus on the shape evolution of the liquid inclusion and the stress concentration in the matrix, from which we identify when the effect of liquid compressibility is most significant. Finally, we classify common examples of liquid inclusions in nature and engineering. According to our theoretical results, we estimate the importance of liquid compressibility in these examples and provide guidelines for further application of the theory of liquid inclusions in practical situations. © 2018

Keyword :

Compressible liquid Displacement and stress fields Elastic composites Extracellular matrices Liquid inclusion Liquid interactions Spherical inclusion Theory of liquids

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GB/T 7714 Chen, Xin , Li, Moxiao , Yang, Mao et al. The elastic fields of a compressible liquid inclusion [J]. | Extreme Mechanics Letters , 2018 , 22 : 122-130 .
MLA Chen, Xin et al. "The elastic fields of a compressible liquid inclusion" . | Extreme Mechanics Letters 22 (2018) : 122-130 .
APA Chen, Xin , Li, Moxiao , Yang, Mao , Liu, Shaobao , Genin, Guy M. , Xu, Feng et al. The elastic fields of a compressible liquid inclusion . | Extreme Mechanics Letters , 2018 , 22 , 122-130 .
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Electrospun three-dimensional aligned nanofibrous scaffolds for tissue engineering EI SCIE PubMed Scopus
期刊论文 | 2018 , 92 , 995-1005 | MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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Abstract :

Engineered tissue constructs rely on biomaterials as support structures for tissue repair and regeneration. Among these biomaterials, polyester biomaterials have been widely used for scaffold construction because of their merits such as ease in synthesis, degradable properties, and elastomeric characteristics. To mimic the aligned structures of native extracellular matrix (ECM) in tissues such as nerve, heart and tendon, various polyester materials have been fabricated into aligned fibrous scaffolds with fibers ranging from several nanometers to several micrometers in diameter by electrospinning in a simple and reproducible manner. These aligned fibrous scaffolds, especially the three-dimensional (3D) aligned nanofibrous scaffolds have emerged as a promising solution for tissue regeneration. Compared with two-dimensional (2D) scaffolds, the 3D aligned nanofibrous scaffolds provide another dimension for cell behaviors such as morphogenesis, migration and cell cell interactions, which is important in regulating the stem cell fate and tissue regeneration. In this review, we provide an extensive overview on recent efforts for constructing 3D aligned polyester nanofibrous scaffolds by electrospinning, then the results of cell-specific functions dependent on such physical and chemical cues, and discuss their potentials in improving or restoring damaged tissues.

Keyword :

Electrospun aligned nanofiber Polyester materials Stem cells Cell microenvironment Tissue regeneration

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GB/T 7714 Jin, Guorui , He, Rongyan , Sha, Baoyong et al. Electrospun three-dimensional aligned nanofibrous scaffolds for tissue engineering [J]. | MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS , 2018 , 92 : 995-1005 .
MLA Jin, Guorui et al. "Electrospun three-dimensional aligned nanofibrous scaffolds for tissue engineering" . | MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 92 (2018) : 995-1005 .
APA Jin, Guorui , He, Rongyan , Sha, Baoyong , Li, Wenfang , Qing, Huaibin , Teng, Rui et al. Electrospun three-dimensional aligned nanofibrous scaffolds for tissue engineering . | MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS , 2018 , 92 , 995-1005 .
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An improved detection limit and working range of lateral flow assays based on a mathematical model SCIE PubMed Scopus
期刊论文 | 2018 , 143 (12) , 2775-2783 | ANALYST
WoS CC Cited Count: 1 SCOPUS Cited Count: 1
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Lateral flow assays (LFAs) have attracted considerable attention in biomedical diagnostics. However, it's still challenging to achieve a high detection sensitivity and extensive working range, mainly because the underlying mechanism of complex reaction processes in LFAs remains unclear. Many mathematical models have been developed to analyze the complex reaction processes, which are only qualitative with limited guidance for LFA design. Now, a semi-quantitative convection-diffusion-reaction model is developed by considering the kinetics of renaturation of nucleic acids and the model is validated by our experiments. We established a method to convert the LFA design parameters between the simulation and experiment (i.e., inlet reporter particle concentration, initial capture probe concentration, and association rate constant), with which we achieved a semi-quantitative comparison of the detection limit and working range between simulations and experiments. Based on our model, we have improved the detection sensitivity and working range by using high concentrations of the inlet reporter particles and initial capture probe. Besides, we also found that target nucleic acid sequences with a high association rate constant are beneficial to improve the LFA performance. The developed model can predict the detection limit and working range and would be helpful to optimize the design of LFAs.

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GB/T 7714 Liu, Zhi , Qu, Zhiguo , Tang, Ruihua et al. An improved detection limit and working range of lateral flow assays based on a mathematical model [J]. | ANALYST , 2018 , 143 (12) : 2775-2783 .
MLA Liu, Zhi et al. "An improved detection limit and working range of lateral flow assays based on a mathematical model" . | ANALYST 143 . 12 (2018) : 2775-2783 .
APA Liu, Zhi , Qu, Zhiguo , Tang, Ruihua , He, Xiaocong , Yang, Hui , Bai, Dan et al. An improved detection limit and working range of lateral flow assays based on a mathematical model . | ANALYST , 2018 , 143 (12) , 2775-2783 .
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Droplet based vitrification for cell aggregates: Numerical analysis EI SCIE PubMed Scopus
期刊论文 | 2018 , 82 , 383-393 | JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
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Abstract :

Cell aggregates represent the main format of cells existing in vivo and have been widely used as tissue and disease models in vitro. Nevertheless, the preservation of cell aggregates while maintaining their functionalities for off the -shelf applications is still challenging. Among various preservation methods, droplet-based vitrification exhibits superior advantages for the cryopreservation of cell aggregates; however, the physical mechanisms underlying droplet-based vitrification of cell aggregate using this method remain elusive. To address this issue, we proposed a voronoi model to construct two-dimensional geometric morphologies of cell aggregates and established a coupled physical model to describe the diffusion, heat transfer and crystallization processes during vitrification. Based on these models, we performed a numerical study on the variation and distribution of cryoprotectant (CPA) concentration, temperature and crystallization in cell aggregates during droplet-based vitrification. The results show that although cell membrane is not an obvious barrier in heat transfer, it affects the diffusion of CPA remarkably as a biologic film and thus the following crystallization in cell aggregates. The effective protection of CPA during vitrification occurs during the initial stage of CPA diffusion, thus a longer CPA loading time does not necessarily lead to significant decrease in crystallization, but rather may induce more toxicity to cells.

Keyword :

Cell aggregates Cell membrane Vitrification Simulation

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GB/T 7714 Shi, Meng , Feng, Shangsheng , Zhang, Xiaohui et al. Droplet based vitrification for cell aggregates: Numerical analysis [J]. | JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS , 2018 , 82 : 383-393 .
MLA Shi, Meng et al. "Droplet based vitrification for cell aggregates: Numerical analysis" . | JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS 82 (2018) : 383-393 .
APA Shi, Meng , Feng, Shangsheng , Zhang, Xiaohui , Ji, Changchun , Xu, Feng , Lu, Tian Jian . Droplet based vitrification for cell aggregates: Numerical analysis . | JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS , 2018 , 82 , 383-393 .
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Biofriendly, Stretchable, and Reusable Hydrogel Electronics as Wearable Force Sensors EI SCIE PubMed Scopus
期刊论文 | 2018 , 14 (36) | SMALL
SCOPUS Cited Count: 1
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Abstract :

The ever-growing overlap between stretchable electronic devices and wearable healthcare applications is igniting the discovery of novel biocompatible and skin-like materials for human-friendly stretchable electronics fabrication. Amongst all potential candidates, hydrogels with excellent biocompatibility and mechanical features close to human tissues are constituting a promising troop for realizing healthcare-oriented electronic functionalities. In this work, based on biocompatible and stretchable hydrogels, a simple paradigm to prototype stretchable electronics with an embedded three-dimensional (3D) helical conductive layout is proposed. Thanks to the 3D helical structure, the hydrogel electronics present satisfactory mechanical and electrical robustness under stretch. In addition, reusability of stretchable electronics is realized with the proposed scenario benefiting from the swelling property of hydrogel. Although losing water would induce structure shrinkage of the hydrogel network and further undermine the function of hydrogel in various applications, the worn-out hydrogel electronics can be reused by simply casting it in water. Through such a rehydration procedure, the dehydrated hydrogel can absorb water from the surrounding and then the hydrogel electronics can achieve resilience in mechanical stretchability and electronic functionality. Also, the ability to reflect pressure and strain changes has revealed the hydrogel electronics to be promising for advanced wearable sensing applications.

Keyword :

hydrogels reusability wearable force sensors function resilience stretchable electronics

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GB/T 7714 Liu, Hao , Li, Moxiao , Ouyang, Cheng et al. Biofriendly, Stretchable, and Reusable Hydrogel Electronics as Wearable Force Sensors [J]. | SMALL , 2018 , 14 (36) .
MLA Liu, Hao et al. "Biofriendly, Stretchable, and Reusable Hydrogel Electronics as Wearable Force Sensors" . | SMALL 14 . 36 (2018) .
APA Liu, Hao , Li, Moxiao , Ouyang, Cheng , Lu, Tian Jian , Li, Fei , Xu, Feng . Biofriendly, Stretchable, and Reusable Hydrogel Electronics as Wearable Force Sensors . | SMALL , 2018 , 14 (36) .
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Reduced graphene oxide functionalized nanofibrous silk fibroin matrices for engineering excitable tissues EI Scopus SCIE
期刊论文 | 2018 , 10 , 982-994 | NPG Asia Materials
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Tissue engineering has provided an alternative strategy for the regeneration of functional tissues for drug screening and disease intervention. The central challenge in the development of mature and functional excitable tissues is to design and construct advanced conductive biomaterials that can guide cells to form electrically interconnected networks. The objective of this study was to develop reduced graphene oxide modified silk nanofibrous biomaterials with controllable surface deposition on the nanoscale. A vacuum filtration system was applied to attain reduced graphene oxide nanolayer deposition. The results demonstrate that with this method, a uniform and compact reduced graphene oxide nanolayer was formed, and the conductivity and nanofibrous morphology of the materials was well controlled. The composite nanofibrous scaffolds were applied for the engineering of cardiac tissues and demonstrated a great ability to promote tissue formation and functions, including the expression of cardiac-specific proteins, the formation of sarcomeric structures and gap junctions, and tissue contraction. External electrical stimulation further enhanced the maturation level of cardiac tissues cultured on these conductive scaffolds. All these results demonstrated the great potential of reduced graphene oxide functionalized silk biomaterials fabricated using our method for recapitulating electrical microenvironments for the regeneration of functional excitable tissues. © 2018, The Author(s).

Keyword :

External electrical stimulations Interconnected network Microenvironments Nanofibrous scaffolds Nanofibrous silk fibroin Reduced graphene oxides Surface deposition Vacuum filtration

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GB/T 7714 Zhao, Guoxu , Qing, Huaibin , Huang, Guoyou et al. Reduced graphene oxide functionalized nanofibrous silk fibroin matrices for engineering excitable tissues [J]. | NPG Asia Materials , 2018 , 10 : 982-994 .
MLA Zhao, Guoxu et al. "Reduced graphene oxide functionalized nanofibrous silk fibroin matrices for engineering excitable tissues" . | NPG Asia Materials 10 (2018) : 982-994 .
APA Zhao, Guoxu , Qing, Huaibin , Huang, Guoyou , Genin, Guy M. , Lu, Tian Jian , Luo, Zhengtang et al. Reduced graphene oxide functionalized nanofibrous silk fibroin matrices for engineering excitable tissues . | NPG Asia Materials , 2018 , 10 , 982-994 .
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Dual-Stimuli-Responsive Paclitaxel Delivery Nanosystems from Chemically Conjugate Self-Assemblies for Carcinoma Treatment EI Scopus SCIE
期刊论文 | 2018 , 39 (24) | Macromolecular Rapid Communications
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© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Diselenide-bond-linked poly(N-isopropylacrylamide)-paclitaxel chemical conjugates are synthesized as a drug release carrier. The conjugates can self-assemble into “core–shell” nanoscaled micelles in aqueous solution and show thermal and redox dual-responsiveness. The conjugates can afford a high encapsulation efficiency of up to 72.3%, and deliver hydrophobic anticancer drug paclitaxel in a temperature and oxidization or reduction stress-mode. The in vitro 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and in vivo anticancer assays are performed to assess the cytotoxicity and anticancer activity of the conjugates, suggesting that the developed conjugates can be used to treat carcinoma as a novel and highly efficient drug delivery system.

Keyword :

biomaterials conjugated polymers micelles self-assembly stimuli-sensitive polymers

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GB/T 7714 Xu, Jing-Wen , Ge, Xin , Lv, Li-Hua et al. Dual-Stimuli-Responsive Paclitaxel Delivery Nanosystems from Chemically Conjugate Self-Assemblies for Carcinoma Treatment [J]. | Macromolecular Rapid Communications , 2018 , 39 (24) .
MLA Xu, Jing-Wen et al. "Dual-Stimuli-Responsive Paclitaxel Delivery Nanosystems from Chemically Conjugate Self-Assemblies for Carcinoma Treatment" . | Macromolecular Rapid Communications 39 . 24 (2018) .
APA Xu, Jing-Wen , Ge, Xin , Lv, Li-Hua , Xu, Feng , Luo, Yan-Ling . Dual-Stimuli-Responsive Paclitaxel Delivery Nanosystems from Chemically Conjugate Self-Assemblies for Carcinoma Treatment . | Macromolecular Rapid Communications , 2018 , 39 (24) .
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